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Will a CPU NB overclock increase CPU temperatures/performance?

post #1 of 11
Thread Starter 
If i overclock my NB from 2400 to 2640 will i notice much of a difference in performance for games, and also in heat. Will it affect the CPU core temperature or just the system, because im more worried about overheating the CPU core temperature...

At the moment CPU NB is at 1.2 i think... how much would i need to push it up. 1.25?
post #2 of 11
overclocking the nb gives a very real speed increase from opening windows/loading progs/games whatever,i clocked up my 945 from 3 to 4.1 and it was abit quicker,but clocking up the nb to 3.2 from 2 gave a much more noticeable speed increase all across the board.
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post #3 of 11
I haven't noticed and increase in CPU core temp and I am at 2800 on NB. I don't notice it when changing vcore much either, mostly in pure clock speed.
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post #4 of 11
Thread Starter 
Ok thanks, what should i clock it to? i can do 2640 or 2880
post #5 of 11
Pushing the NB frequency to 2600+ on your 890fx mobo wont give you any significant benefit. It will overheat your NB (If that mobo has a good NB heatsink, then it wont be a problem). I would advice against raising the nb frequency.
    
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post #6 of 11
I did see a 2-3c increase in temps going from stock to 2800@1.38v, well worth it IMO.
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post #7 of 11
Quote:
Originally Posted by MightyMission;11815649 
overclocking the nb gives a very real speed increase from opening windows/loading progs/games whatever,i clocked up my 945 from 3 to 4.1 and it was abit quicker,but clocking up the nb to 3.2 from 2 gave a much more noticeable speed increase all across the board.

Are you using watercooler blocks?
What is your ambient temp? .... if you dont mind my asking.
    
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post #8 of 11
i have gone back to air cooling as my chiller is now dead RIP water chiller!
anyway i ripped a piddly little fan off an old intel cpu and repasted the heatpipe,then bodged te fan on top of it,its just low enough profile as to not conflict with the 470s.
overall the mcp temp (the one to watch) was standing around 62c now its 38 max,i couldnt tell ambients but i would thoroughly recommend changing the thermal paste on the nb cooler.then oyu are pretty much set for reasonable voltage increases.
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Lil Cutey
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post #9 of 11
The cpu-nb(IMC) is on the cpu not the motherboard.
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post #10 of 11
I have already posted this on several other topics, as it seems to give clear idea of NB freq impact on performance. High NB comes very hands with high speed rams and tighter timing, meaning that improvement is significant .
Here is two MaxxMeM test from my own ram overclocking process.

1800 (7-8-7-21-24-1T) @ 1.6v - NB (2.9ghz)
wt2sqjdwban074mfsasa.jpg

1800 (7-8-7-21-24-1T) @ 1.6v - NB (2.45ghz)
a2iayl5g0zheeeuw8flh.jpg



FIXED
Edited by luches - 12/29/10 at 5:40am
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